Valve



(No Model.)

J. DEMAREST.

FLUSHING VALVE.

N0.'260,952. PatentedJuly 11, 1882.

lll/111111111 umzug Mmmm-mman UNITED STATES PATENT OFFICE.

JOHN DEMAREST, OF NEW YORK, N. Y.

FLu'sHlNG-VALVE.

SPECIFICATION forming part f Letters Patent NO. 260,952, dated July v11,1882.

l Application led February 23, 1882. (No model.)

To all whom it may concern Be it known that I, JOHN DEMAREST, of thecity and State of New York, have invented an Improvement inFlushing-Valves, of which the following is a specification. Y

This invention is an improvement upon the device for which LettersPatent No. 249,696

were granted November 15, 1881. In this patent the water is suppliedinto a cistern and there is a valve and a iloat which acts through aratchet to hold up the valve after said valve has been lifted and toprevent its descent until the water runs out and allows the float todrop and relieve the valve from its suspending device. This,however, iscomplicated and expensive to construct, and the valve cannot be heldopen by the pull in case there is an insuicient amount of water in thecistern. I combine with thevalve a guide through which the stem passes,a float, anda finger which acts to hold the valve up at any place towhich it may be lifted; but so soon as the water falls from below thefloat and allows that to descend the finger ceases to hold the valve up,and it drops by gravity and closes the escape-openin g to the closet. A

In the drawings, Figure 1 is a vertical section of the cistern andvalve, and Fig. 2 is a plan of the same. A

The cistern a is of suitable size and shape, and is provided with asupply-pipe, b, from a head ot' water to which a ball-valve is axed soas to refill such cistern with water whenever the same has been emptied.It is usual to furnish one small cistern to each watencloset, and wherethere are several water-closets on the same floor to use one generalsupply-cistern with ball cock or valve to the water-pipe and to lead apipe from this supply-cistern to the closet-cisterns and connect eachclosetcis tern with the same by a rather small pipe, so that saidcloset-cistern, after bein g emptied suddenly, as hereinafter described,will be lled again gradually from such supply-cistern.

The discharge-pipe dfrom the bottom of the cistern leads to thewatercloset,and atthe upper end of this pipe, and within the cistern,there is a tapering valve-seat, e.

The overow-pipe f rises above the valveseat e, and it has a valve at tto close upon such seat. This overflow-pipe is of a size to dischargeinto the closet any surplus water from the cistern should such run intothe same, the open upper end of the overflow-pipe being considerablybelow the top edge of the eistern a. I make the valve t of a ring ofround rubber, shrunk on the lower part of the overflowtube f below asupporting-rim, l, and above a slight projectin grim, that prevents therubber rin g bein gdrawn oli' accidentally. If the overflow-pipeis notneeded, the valve and 4stem may be of solid metal and receive the saidrubber ring. The overflow-pipe f or valve-stem is guided by a stationaryring, m, through which it is passed, the same being supported by thestandards e from the sides of the valve-seat, and there is a forkedlever, n, pivoted at o, which passesbeneath the flange at the upper endof the overflow pipe or stem, and theother end of this lever is actuatedby a connection, s, to the closet-pull or other device, so that when thevalve is raised the water runs out freely and rapidly to thewater-closet. Valves acted upon by the closet-pulls have been used .butif the pull is raised and then liberated suddenly the valve is not heldupa sufficienttime to allow the necessary flushing of the closet.

To prevent the valve falling, I make use of the oat r and an arm that ispivoted at u to the ring m, and there is a finger at the inner end ofthe arm, that presses upon the valvestem or overflow-pipe f, to hold thevalve up when raised, but not to interfere with thelit'ting of the valveby the lever n. It is to be understood that the iioat, being in thewater within the cistern, will continue to act upon the linger and holdup the valve until the water falls below the float, so that the samedescends and relieves the pressure upon the n ger and allows the valveto drop. The surface of the valve-stem may be smooth, in which case thevalve will be held up by friction; or the stem may be grooved, toreceive the end of the linger, similar to a ratchet and pawl. Theoverflow-pipe becomes the stem of the valve, and, so far as the actionof the vfloat and n ger is concerned, the stem may be either solidor`tubular. The tubular stem, however, is preferable, because, inaddition to its office as an overlow-pipe,it becomes an air-inlet pipeto allow air to pass into the discharge-pipe leading to the closet, sothat there will be no concussion IOC) or ram action on the valve as itcloses, and the column of water can continue to descend and passentirely into the closet as the air cn ters through the tubularvalve-stem into the discharge-pipee I claim as my invention- 1. Thecombination, with the Water-closet cstern and valve, of a iioai; and a,finger acting upon the valve-stem and mechanism for 1o raising theValve, substantially as set forth.

2. The combination, wit-h, the water-closet cistern, ot' an overiow-pipcand valve, a seat for the valve, a guide for the oVeroW-tube, a floatand arm pivoted to the guide, anda nger actin g against the overoW-pipe,substan- 15 tially as set forth.

Signed by me this 14th day of February7 A.

JOHN DEMAREST. Witnesses:

GEO. T. PINCKNEY, WILLIAM G. Mo'rT.

ha Ai

